Hi , Can i suggest 4 lenses with two being more important than the other two for landscape, option 1 90 mm f8 (smaller lighter for landscape)option 2 150 or 135
option 3 240 mm Fujinon f9 (perfect backpackers lense )and Fujinon 300 8.5 C (Ditto) if you shoot interiors ignore most of my suggestions . But buy the 90 before any other , it is the first length that does not need centre filters as standard or reccessed boards (pain in the A!!)I own a 58 mm SA and hardly use it , Why? Bag bellows , centre filter and recessed boards , mandatory !!Cheers Gary